Smoker&#39;s pipe



June 12, 1945. M R WALLACE 2,377,983

SMOKER S PIPE Filed June 24, 1943 flab/5? Wad/ace IN VEN TOR.

ATTORNEYS Patented June 12, 1945 UNITED STATES PATENT OFFICE Mac R. Wallace, Winchester, Mass.

Application June 24, 1943, Serial No. 492,066

1 Claim.

My invention relates to smokers pipes, and has among its objects and advantages the provision of an improved air circulating pipe so designed as to provide a cooler smoke, and one in which the smoke conduit is of relatively great length but so arranged that the pipe design need not depart materially from conventional pipes with respect to size and general contour.

In the accompanying drawing:

Figure 1 is a top plan view of a pipe in accordance with my invention.

Figure 2 is a sectional view along the line 2--2 of Figure 1.

Figure 3 is a top plan view of the bowl part with a portion detached therefrom.

Figure 4 is a sectional view along the line 44 of Figure 8.

Figure 5 is a partial sectional view of. an insert for the stem, which insert isso devised as to provide a relatively long smoke circulating passage in a relatively short stem for coaction with the increased smoke passage in the bowl part of the pipe.

Figure 6 is a bowl endview. of the insert.

Figure '7 is a view of the other end of the insert. 7 Figure 8 is a bowl end view of the body of the insert with a cover cap removed, and

Figure 9 is a similar View of the other end of the insert.

In the embodiment of the invention selected for illustration, the pipe It) includes a bowl l2 and a stem M. A mouthpiece I6 is detachably connected with the stem M by an insert l8 which fits snugly in coaxial bores 20 in the stem and the mouthpiece. A sleeve 22 fits snugly about the stemand the mouthpiece for sealing purposes.

The bores 2!] terminate in reduced diameters at their ends to provide chambers 24 and 26 in the stem l4 and the mouthpiece l6, respectively. The chamber 26 has communication with a smoke passage 28 in the mouthpiece I6, while the chamber 24 communicates with a smoke passage 30 in the stem l4 and leading into a vertical smoke passage 32 in the wall of the bowl l2. The smoke passage 32 communicates with a groove 34 in the end face 36 of the bowl. This groove is closed by a sealing gasket 38 and a washer '40 clamped against the sealing washer by screws 42 extending through both the washer and the gasket and threaded into the bowl l2.

Communication is established betweenthe groove 34 bores 46 in the wall of the bowl l2. The bores 46 are located at the ends of the groove 34 and the passage 32 is located intermediate the ends of the groove.

and the tobacco cavity 44 by vertical Ports 48 place the lower ends of the passages 46 in communication with the cavity 44. .These ports are preferably drilled entirely through the wall of the bowl I2 and then plugged at their outer ends, as at 50 in Figure 4. I

The ports 48 are located near the bottom of the cavity 44, and the passages 46, 34, 32 and 30 are so arranged as to total a considerable length for smoke cooling purposes.

To further increase the length of the smoke circulating passage, the insert 18 is provided with three longitudinal grooves 52, 54 and 56. A disk 58 is attached to the bowl end of the insert l8 by a screw 50 to provide a cover for a groove 62 extending across one end of the insert l8 and placing the grooves 54 and 56 in communication with each other. A similar disk 64 is attached to the mouthpiece end of the insert l8 by a screw 66. This disk provides a cover for a groove 68 extending across the mouthpiece end of the insert l8. This groove places the groove 52 in communication with the groove 54.

The disks 58 and 64 are of the same diameter as the insert l8. A notch 10 is provided in the disk 58 to place the groove 52 in communication with the chamber 24. A similar notch 72 is provided in the disk 64 to place the chamber 26 in communication with the groove 56. Thus the smoke is caused to circulate three times lengthwise or the insert l8 to lend additional length to the smoke cooling passage.

. While the insert l8 fits snugly in the bores 20, the insert may be easily removed by detaching the mouthpiece 16. The insert l8 will project sufiiciently far irom'the stem M to permit a good grip to be had on the insert.

Without further elaboration, the foregoing will so fully explain my invention, that others may, by applying current knowledge, readily adapt the same for use under various conditions of service.

I claim:

In a smokers pipe, a bowl having a stem, a

grooves and said chamber, and the other disk being provided with a notch registering with one of the lateral grooves to establish communication between said groove and the chamber of the mouthpiece, this disk cutting off communication between the remaining grooves and this chamber.

MAC R. WALLACE. 

